谐波平衡
控制理论(社会学)
气动弹性
执行机构
谐波
分叉
泰勒级数
频域
磁滞
谐波
数值延拓
鳍
极限环
计算机科学
空气动力学
数学
工程类
数学分析
机械
物理
非线性系统
电压
声学
人工智能
电气工程
机械工程
控制(管理)
量子力学
作者
Yan-Rong Liu,Zhigang Wu,Chao Yang
出处
期刊:Lecture notes in electrical engineering
日期:2021-11-02
卷期号:: 585-596
标识
DOI:10.1007/978-981-16-7423-5_58
摘要
AbstractAlthough the time-domain aeroelastic analysis of the fin-actuator system is accurate, it is very time-consuming. Some work in the past used the describing function method to calculate the dynamic stiffness of the actuator, and then obtained the aeroelastic stability of the system in the frequency domain. This greatly shortened the time, but there was a loss in accuracy. In order to improve the accuracy and speed up the calculation to a certain extent, this paper uses high order harmonics to describe the response of the system. The frictional hysteresis loop is difficult to obtain a closed-form solution in the frequency domain. In this paper, a truncated Taylor series expansion is used to smooth the LuGre friction model so that the harmonic balance method can be used. The pseudo-arclength continuation method is used to solve the problem, and the bifurcation diagram of the limit cycle of the system is obtained. The results show that the method used in this paper has achieved a balance between time and accuracy in calculating the aeroelastic stability of the fin-actuator system.KeywordsAeroelasticityFrictionHarmonic balancePseudo-arclength continuation
科研通智能强力驱动
Strongly Powered by AbleSci AI